In the process of data restoration, incorrect manipulation can make a second damage, which brings you much more difficulty in recovery. Inputting new data to resource disk is forbidden in data restoration. All manipulation in the following is unacceptable.

Checking DskChk disk. Generally, when errors occur in file system, a automatic indication “whether to check the disk” will appear, and after ten-second-default, DskChk disk will be checked. This operation can sometimes repair somewhat damaged directory files. However, it damages data very often, because complicate directory structure can’t be repaired. When reparation fails, some directories (with lots of files with a .CHK extension name) such as FOUND.000, will form under root directory. Sometimes these files can be recovered as long as their names are changed, but sometimes cannot, especially to FAT32 partition or big data files of NTFS

Recovering data to source disk. After deleting files, many costumers directly restore the recovered files to the primary directory with common software, which may damage the primary data badly. Clearly, recovering data directly to source disk is forbidden.

Rebuilding partition. To damaged or deleted partition table, if you use partition table rebuild tool to build or format partition, it is easily to damage FAT of the primary partition or MFT, increasing more recovery difficulty.
In many cases, when partition was damaged, the customer didn’t turn to the professor until they handled it with several partition tools. We find that those partition tools have damaged some important directory files, or caused directory partial-recovery, or caused big files unrecoverable. However, these files could have been recovered completely. First, the professional data recovery worker locates the partition table(logic sector number) before rebuilding it. Second, he checks some important parameters of partition by sector-checking-tool, such as DBR/FAT/FDT/MFT ect.. After this, he repairs partition table

Rebuilding the lost array. When services crashed, some network managers made the array go on line compulsively, including the dropped disk, or did rebuilding directly. All these operation is dangerous, for any inputting operation may damage data.

Friendly tips: Please do not write new files into a partition to be recovered, do not format a partition or repartition it and do not recover data into a partition to be recovered to avoid a secondary data damage. Please download our software onto a partition or disk not to be recovered before performing recovery operations

DERescue is a very powerful software to recover lost data. Please do not write any data to the partition or disk that you want to recover

User Reviews :

Strengths : It worked to recover the data I deleted from my external USB backup drive after my computer crashed.

Overall Evaluation: Overall it worked. I downloaded it and scanned to find data, and it did it. Before I could recover anything, I had to register it. That ment paying $60 to get the registration key. I think it was well worth the money. Reviewed from pcworld